Email trouble

Richard7

New Email
My iPad mini (1 year old and me being a novice) email shows no. 4,800 over the icon.need to get rid of it plus my inbox had a lot of emails repeated over & over saying it was from a post office plus someone emailed me complaining about me flooding her inbox with same mess And asking me to stop. I did not do anything..I am a NOVICE at this stuff:confused:
 
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